When I configure SPAN on my 3750 switch, it gives me this error:
% Warning: One or more specified dest port does not support requested encapsulation.
The command I use to configure SPAN is:
(config)#monitor session 1 destination interface Fa1/0/24 encapsulation dot1q
I am using WireShark as the packet sniffer and I have configured my Ether Card on my PC to accept vlan tags however I still can't see the tags from the captured data...
I also tried to configure f1/0/24 as a trunk port but I still get the same error... I will very much appreciate any help or advice! Thanks!
Your command should read as:
monitor session 1 destination interface Fa1/0/24 encapsulation replicate,
as documented e.g. at:
please see the Usage Guidelines part,